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The California Department of Tax and Fee Administration (CDTFA) has officially published updated sales and use tax rates that take effect April 1, 2026. Several cities and counties will see increases driven by voter-approved measures from the November 2025 election. Retailers and businesses operating in these jurisdictions must update their point-of-sale systems and accounting software immediately to avoid under-collection and potential audit issues.
The new rates include:
- Santa Clara County: 9.125% → 9.750%
- City of Campbell: 9.875% → 10.500%
- City of Los Gatos: 9.250% → 9.875%
- City of McFarland: 8.250% → 9.250%
- City of Dunsmuir: 7.750% → 8.250%
Additional districts are also affected. These changes are localized, meaning the “effective rate” at the register or on e-commerce platforms will vary by exact location. The CDTFA has released a full rate lookup tool and detailed bulletin to help businesses implement the updates accurately.
For multinational corporations, regional retailers, and e-commerce sellers with a California presence, this California Sales Tax Update April 2026 requires urgent action. Failing to adjust systems before April 1 could result in significant compliance costs during future audits. The CDTFA strongly recommends verifying the exact district rate for every sales location and testing POS software before the new rates go live.
